an attempt to get Britain to stop seizing American ships.
The factor that had the most influence in the transition from wandering tribes to the emergence of cities would be "<span>a. food," since it was a surplus of agriculture that allowed people to develop trades other than farming. </span>
It led to recognition of post-traumatic stress as a legitimate psychological ailment
By exposing the citizen armies of Europe to prolonged and extreme
danger, World War One generated psychological casualties on an
industrial scale. This, in turn, created a military crisis that drew
doctors from a diverse range of specialties into the field of mental
health; never before had so much attention been focused on a single
psychiatric disorder.